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Noise Reduction for Bidirectional Bus Drivers with Impedance Match

IP.com Disclosure Number: IPCOM000118111D
Original Publication Date: 1996-Sep-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Authors:
Frech, R Harrer, H Kaller, D Klink, E [+details]

Abstract

Disclosed is a noise reduction for bidirectional driver/receiver books, which are matched to the characteristic line impedance by a resistor. The idea is to put the serial resistor of the driver into the Bidirectional Bus (BIDI) path. If the line is quiet, the noise margin is increased due to dissipating a part of the coupling energy at the serial resistor before the receiver.